Self Diagnosis Function; Diagnostic Test Indicators - Sony XBR-49X835D Service Manual

Gn2tr chassis segment: qh2

Table of Contents

SELF DIAGNOSIS FUNCTION

The units in this manual contain a self-diagnostic function. If an error occurs, the Smart Core Red LED will automatically begin to flash.

The number of times the LED flashes translates to a probable source of the problem.

A definition of the Smart Core Red LED flash indicators is listed in the instruction manual for the user's knowledge and reference.

If an error symptom cannot be reproduced, the remote commander can be used to review the failure occurrence data stored in memory to reveal past problems and how often these

problems occur.

DIAGNOSTIC TEST INDICATORS

When an error occurs, the Smart Core Red LED will flash a set number of times to indicate the possible cause of the problem.

If there is more than one error, the LED will identify the first of the problem areas.

Result for all of the following diagnostic items are displayed on screen.

If the screen displays a "0", no error has occurred .

RED LED blinking count

Below items are not included in the "RED LED count" but will be recorded as an error and will be shown on the self diagnostic Screen display on the following page.

Record Only Item

TU_DEMOD

TCON_ERR

FRCTC_I2C

AUD_ERR_I2C

Blue

italic: detect at startup sequence only.

XBR-49X835D

<G>: Power supply board, <B>: Main board, <T>: T-con board, <LD> LD board (if AC adapter model, it would power supply for Set),

<P>: Panel module <S>: Speaker <A>: Power Adapter, <D>: 4KBE + audio board (w/ 4KBE only), <Tu>: Tuner board (w/o 4KBE only)

<B/G/A> Main 12V over voltage [MAIN_POWER]

<B> Main 5.0V failure [DC_ALERT]